hi leatherbag,

I understand. A relationship with a person with BPD ( pwBPD ) feels like we're on an emotional roller-coaster. A pwBPD want emotional intimacy but it triggers the disorder when we get too close and they push you away. The distance triggers the person's fear of abandonment and they try to pull you closer. The push / pull behavior can feel like crazy making behavior with the non-disordered partner.
I think that you have the right idea with self care, it takes time to reach acceptance and it helps when we self protect for awhile so that we can detach and heal our emotional wounds. Do you live together?